Notifications

Pixel and Nexus devices start receiving OTA updates on the same day the
monthly bulletin is released. In general, it takes about one and a half calendar
weeks for the OTA to reach every Nexus device. The Nexus firmware images are
also released each month to the
Google Developer
site.

Sources

Patches listed in the Pixel&hairsp;/&hairsp;Nexus bulletin come from various
sources: the Android Open Source Project (AOSP), the upstream Linux kernel,
and system-on-chip (SOC) manufacturers. Android platform fixes are merged into
AOSP 24–48 hours after the Pixel&hairsp;/&hairsp;Nexus bulletin is released.